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Упражнение № 2. Перепишите предложения. Подчеркните в них причастия и определите их функцию. Предложения переведите.

1. Wire-covered cylinders revolve in vats containing fibers suspended in water.
2. The drum is rotated causing the logs to tumble over one another.
3. The barking is accomplished in long cylindrical steel drums known as barking drums.

Упражнение № 3. Перепишите предложения. Подчеркните в них герундий и определите его функцию. Предложения переведите.

1. These pulping processes cannot remove all the lignin without degrading the carbohydrate fraction.
2. Maintaining a constant load on the stone is important.
3. Reducing the raw material to the fibrous state is carried out by mechanical or semi-mechanical means.

Упражнение № 4. Перепишите предложения, подчеркните инфинитив, укажите его функцию. Предложения переведите.

1. Any chemicals to be applied to the web are found in special devices on the calender stack.
2. The stock has to be introduced into the tank under the washing drum.
3. By the end of the 19th century, wood cellulose began to be used as a raw material for making artificial fibers.